NPI Portal NPI Lookup & Verification

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Mr. William Clay Hassett, HIS

Hearing Instrument Specialist in Birmingham, AL · enumerated 2006 · practices at Northland Hearing Centers, Inc..

Data current as of Jul 13, 2026 · sourced from CMS NPPES

National Provider Identifier

1609881143

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Registry record

Entity type Individual (Type 1)
Name Mr. William Clay Hassett
Credential HIS
Sex Male
Practice address 2523 5th Ave S, Birmingham, AL, 35233
Fax (205) 322-8713
Enumeration date Jul 31, 2006
Last updated in NPPES Mar 17, 2018

Taxonomy & licenses

237700000X Hearing Instrument Specialist Speech, Language and Hearing Service Providers · License 2153 (AL) Primary

What is an NPI number?

A National Provider Identifier (NPI) is a unique 10-digit number that CMS assigns to every U.S. healthcare provider and organization under HIPAA. Type 1 NPIs identify individual providers; Type 2 NPIs identify organizations. The NPI appears on insurance claims, prescriptions, and credentialing paperwork, and never changes, even if the provider moves or changes specialty.

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Frequently asked questions

Is this the official NPI registry?
No. NPI Portal is a private site built on public CMS NPPES data. The official registry is npiregistry.cms.hhs.gov, operated by CMS.
What specialty is William Hassett?
William Hassett is registered in NPPES with the primary taxonomy of Hearing Instrument Specialist. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2018-03-17.